Purifier for steam-boilers.



H. H. RALPH.

PURIFIER FOR STEAM BOILERS.

APPLICATION FILED FEB. 16,1915- 1 9 1 6&65 1L 9 Patented Nov. 16, 1915.

COLUMBIA PLANOGRAPH CONWASHXNGTON, 17.6.

HARRY H. RALPH, 0F PHILADELPHJ IA, PENNSYTZVANIA.

runir'rnrt For; STEAM-BOILERS.

Specification of Letters Patent.

Application fiIed February 16, 1915. Serial No. 8,589.

To all whom it may concern:

Be it known that I, HARRY H. RALPH, a citizen of the United'States, residing at the city of Philadelphia, in the county of Philad iphia' and State of Pennsylvania, have invented certain new and useful Improvements in Purifiers for Steam-Boilers of;

' strated that during excess or forced feeding of water to a boiler, or in the case of a boiler vorking on an overload, an overflow or leakage of solids from said purifier takes place, which solids in falling among the boiler tubes adhered thereto. Such overflowor leakage of solids is caused by undue agitation at the inlet end of the purifier and instead of all the solids precipitating to the purifier bcttom quantities thereof escaped to the boiler through the ports of the puritier.

To overcome the above-recited disadvantageous features, to provide for a maximum amount of precipitation of solids; and to provide certain new andnovel arrangements and combinations of parts for producing a more etlicient and commercially valuable purifier for steam boilers, are the principal objects of the present invention.

With these and other objects in view, the invention consists of the improvements hereinafter described and finally claimed.

The nature, characteristic features and scope of the invention will be more fullyunderstood from the following description, taken in connection with the accompanying drawing forming part hereof and in which:

Figue 1, is a view in section of a steam boiler equipped with a purifier embodying the invention, Fig. 2, -is a view partly in elevation and partly in section of the purifier, detached. Fig. 3, is a view in crosssection, taken upon the line 33 of Fig. 1,

but drawn to an enlarged scale; and Fig. 4c,

is a detail view of a check valve hereinafter referred to.

In the drawings, there is illustrated an ordinary horizontal tubular boiler 1, contained within which is the feed-water purifier 2, of the invention. As shown, the purifier consists of siX sections bolted together as at 3, to form a casing. The number of sections, however, is immaterial. Leading to the purifier 2, from a pump not shown,is a feed-w.-1ter inlet connection 4:. The opposite end, of the purifier 2, has leading therefrom a pipe 5, having a valve 6. This pipe may be connected with the. valved blow-off 7, of'the boiler 1. Adjacent theupper part of section a, of the purifier and upon each side. thereof are. openings or ports 8, and 9.

Leading from these ports are pipes 10, and

11, of which the pipe 11, is shown as extending rearwardly and parallel with the sides of the purifier and the pipe 10, is shown as extending forwardly in like manner. The pipes 10, and 11, terminate in funnel-like members 12, which are horizontally disposed as shown and each pipe is provided with an 1nwardly opening check valve. That part of inlet connection 4, located within the boilerand which may be coiled is provided with a funnel-like member 13, providedwith;

an inwardly opening check valve. These parts are all shown andfully described in my aforesaid patent. In addition to the openings or ports 8, and 9, section a, of the purifier is provided with openings or ports upon each side thereof which are designated 14:, and 15. Pipes 16, connect with these openings or ports and areextended downwardly through the boilerto within a short distance of the bottom thereof. Section I). (which is immediately adiacent section a) and the extreme outer section 0. of the purifier are provided with openings or ports from which extend in similar manner pipes 17, and 18. These various pipes are extend ed to pass between the boiler tubes 19, as clearly shown in Fig. 3. Each of these pipes is, provided with an outwardly opening check valve 20, see Fig. 4, which check valves are preferably placed adjacent the purifier casing, so as to provide in effect valved ports for the purifier. The free ends of the pipes, 16, 17. and 18, stop immediately above trough-like receptacles 21, and 22, which receptacles as shown are suspended by straps 23, from the lower row of boiler tubes. The

Patented Nov. re, leis.

" top rimsof the receptacles are turned inwardly at an angle, as at 24, see Fig. 3. The

atelyto the rearof ports 89 is avertically disposed baffle plate 24, which extends from the top of said section to within ashortdis tance of the bottom thereof and preferably integral with said section. Extended at right angles from the back of said baflie platesubstantially midway of the height of thesection a, is a horizontally disposed baffle plate 25, preferably formed integral with said baffle plate and said section. Secured within adjacent section b, and preferably integral therewith is a horizontally disposed baffle plate 26, arranged in the same plane as the baffle plate 25, and which in efiect is a continuation offthe latter. battle plates form a somewhat T-shaped construction Obviously, if desirable the purifiersection next beyond section b, may have therein a baffle plate forming a continuation of baffle plate 26. The advantages of such v arrangement of baffles will be explained connection with the operatlon of the punfier to be presently described. Each section of the purifier has preferablyformed integral therewith, upon each side thereof, lugs 27, taped as shown. ;At least some of these taped lugs have fitted thereto screw threaded stems provided with swiveled eyes 28. Straps 29, are secured to these eyes 28, and in turn are connected to eyes 30, fixed to the boiler top. This construction forms means for suspending the purifier within a boiler in a rapid,cheap and efficient manner and by reason of the screw-threaded connection between the lugs and swiveled eyes, uniform adjustments may readily be made.

In practice, it is endeavored to keep the water line within the boiler 1, even with the funnel tops 12, and 13, so that the water outlet openings or ports are consequently below th water line, and it may be here remarked that normally pressure within the purifier 2, is slightly in excess of pressure within the boiler. In feeding raw water, which usually contains silica, oxid of iron and alumina, lime and magnesia, to the purifier 2, it first impinges against the bafiie plate 24:, and the sediment in the water, caused by the partial precipitation of the above solids as they pass through the heated portion of the inlet pipe 4, isdirectedto the bottom of the purifier which sediment tends to settle within the chamber 31,.that extends along the base thereof. In this connection the baffles 25, and 26, or any continuation thereof, serve to further direct said sediment toward the chamber 31, during the agitation of water which occurs at the inlet end of the purifier. lVith the introduction of water The I combined within the purifier, the tendency of the water is to flow toward the extreme outer end of the purifier. By reason of the pipes 18, the feed water will first find its way to the boiler through these pipes, in contradistinction to trapping or backing up within the purifier. It will then gradually find its way to the boiler through pipes 16, and 17 The pipes 18, also serve to permit of the escape of air which may enter the purifier with the feed water.

The above described arrangement of pipes permits of a gentle flow of feed water within the purifier, and also serves to permit of a maximum amount of precipitation of solids, due to increased heating surface before delivery of water to the boiler. W'ith the overfecding of water to the purifier undue agitation occurs more or less throughout the purifier thereby permitting solids to pass out through pipes 16, 17, and 18. These solids are collected within the troughs 21, and 22, at the boiler bottom, see Fig. 8. Thus practically no solids reach the boiler interior. In this connection, it is to be noted that the parts 24, of the troughs tend to keep the solids within the troughs, although water may readily find its way to the boiler. It is to be noted that the pipes 16, 17, and 18, may be extended if desired, to what is termed dead points in a boiler, particularly in marine and locomotive boilers, in order to increase circulation therein. It is thought that the operation of blowing off the boiler together with the action of th scum collectors will be understood by reference to my aforesaid patent without description thereof herein. However, it is to be noted that during the blow off operation, the valves 20, close so that any solids within the trougl'is 21, and 22, cannot be sucked back into the purifier.

What I claim is:

l. A. water purifier embracing a hollow casing made up of a series of sections bolted together of which one end section is provided with an inlet connection and of which the opposite end section is provided with a port having an outwardly opening valve, a vertical baffle plate within the inlet section spaced apart from but immediately adjacent said inlet and extended from the casing top to within a short distance of the bottom thereof and a second bafiie plate abutting against the first mentioned baffle plate and extended horizontally of said section substantially mid-way of the height of the casing.

2. A water purifier embracing a hollow casing made up of a series of sections bolted together of which one section is provided with an inlet connection and of which the opposite end section is provided with a port having an outwardly opening valve, a vertical bafiie plate within the inlet section spaced apart from but immediately adjacent said inlet and extended from the casing top to within a short distance of the casing bottom, and a second batlie plate abutting against the first mentioned bafiie plate and extended horizontally of said section and through at least one adjacent section substantially midway of the height of the casing.

53. in combination a steam boiler, a feedwater purifier including its complemental inlet connection located within the boiler said purifier being provided upon each side and at least at each end thereof with ports having outwardly opening valves, means for collecting solids from the feed water sup ply located adjacent the boiler bottom and means for conveying said feed water to the boiler operatively connected between said valved ports and said solids collecting means.

a In combination a steam boiler, a feed water purifier including its complemental inlet connection located within the boiler said purifier being made up of a series of sections bolted together, at least the end sections being provided upon each purifier side with ports having outwardly opening valves, means for collecting solids from the feed water supply located adjacent the boiler bottom and piped connections operatively disposed between said valved ports and said solids collecting means.

5. In combination a steam boiler, a'feed water purifier located within the boiler said purifier being made up of a series of sections bolted together of which one end section is provided with an inlet connection and of which at least the end sections are provided with ports having outwardly opening valves, a vertical baffle plate within the first-mentioned section immediately adjacent the inlet, a horizontally disposed bailie plate extended rearwardly from the vertical bailie plate, a medium for collecting solids from the feed water supply located adjacent the boiler bottom and means forconveying feed water to the boiler operatively connected between said valved ports and said solids collecting medium.

(3. In combination a steam boiler, a feed water purifier therein which purifier is provided with a complemental water inlet con- Copies of this patent may be obtained for five cents each, by addressing the Commissioner of-PatentS,

nection and with ports having outwardly opening valves, open top mediums for collecting solids from the feed water supply deposed adjacent the boiler bottom said open tops being partially closed by inwardly extending flanged portions, and means operatively disposed between said ports and said solids collecting mediums for conveying feed water to the boiler.

7. In combination a steam boiler, a feed water purifier therein having a comple mental inlet connection and with ports having outwardly opening valves, boiler scum delivering means operatively connected with the purifier, open top mediums for collecting solids from the feed water supply disposed adjacent the boiler bottom said opening tops being partially closed by inwardly extended flanged portions and means operatively disposed between said ports and said solids collecting medium for conveying feed water to the boiler.

8. In combination a steam boiler, a feed water purifier made up of a series of sections bolted together, oppositely disposed taped lugs for said sections, screw-threaded stems having swiveled eyes adjustably fitted to at least some of said lugs and means connecting said eyes with the boiler top for suspending the purifier.

9. A water purifier embracing a hollow casing made up oil a series of separable sections bolted together, of which one section is provided with an inlet connection, a vertical bail'le plate Within the inlet section spaced apart from but immediately acent said inlet and extending from the casing top to within a short distance of the bottom thereof, which vertical bail'le has formed integral therewith and extended horizontally therefrom a short section of bafile plate, and of which at least the adjacent section to the inlet section is integrally provided with a horizontal ballle plate forming a continuation of the horizontal baflie plate in the inlet section.

In testimony whereof, I have hereunto signed my name.

HARRY H. RALPH. lVitnesses AGNES E. CASKEY, HELEN M. BYRNE.

Washington, D. C. 

